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We report an optical frequency comb (OFC) generation by using a single dual-drive Mach-Zehnder modulator (DD-MZM). Over 21 comb modes with optical power above -5dBm and power flatness of 0.81 were generated within the -6 dB bandwidth of the OFC optical spectrum. 10 Gb/s OOK data modulation were applied to the optical combs, and error free transmission were achieved after 10-km SSMF. The results indicated that a total capacity of 210-Gb/s WDM optical interconnection link can be enabled by the OFC based on a single DD-MZM with potentially 44% reduction of power consumption compared the case of using multiple laser diodes.
Curry et al. (1977) studied this question.